Enrollment
311
High
DISTRICT 328 · STATE 738
SCHOOL COMMUNITY·LINE MOUNTAIN SD·NCES 421446003532
Line Mountain HS
187 Line Mountain Road, Herndon, PA 17830 · (570) 758-2011 · Northumberland County
GRADES 09–12HIGH42-RURALTITLE IREGULAR SCHOOL311 STUDENTS
Student : Teacher
12.0:1
26 FTE teachers
DISTRICT 13.9:1 · STATE 12.8:1
Free / Reduced Lunch
45%
141 students
DISTRICT 50% · STATE 75%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Line Mountain SD. Attendance zones can vary; confirm enrollment with the district.
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
66.3%
PA avg 51.1% . -5.9pp since 2023
Math
49.4%
PA avg 43.0% . +6.0pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 66 of every 100 students at this school read and write at grade level and about 49 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are down about 6 points since 2023, while math scores are up about 6 points.
Source: PSSA + Keystone. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
58.8%
composite math + reading, all grades
Predicted
58.2%
based on PA schools with similar FRL share
Beats by
+0.6pp
above demographic expectation
What this means: About 59% of students here test proficient in math and reading, compared with the roughly 58% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
311
-62 (-17%) vs 2017
Student : Teacher
12.0:1
was 11.9:1
% White
95%
was 97%
% Hispanic
3%
was 2%
% Black
1%
was 1%
% Asian
0%
was 1%
Source: NCES Common Core of Data
About Line Mountain HS
Line Mountain HS is a senior high of compact scale in Herndon, Pennsylvania, overseen by Line Mountain SD, serveing 311 students in grades 9 through 12. Enrollment runs roughly 58% below the state mean of about 738.
Across the 3 schools in Line Mountain SD (985 students total), Line Mountain HS accounts for its share of the district's footprint.
On the student-mix side, Line Mountain HS reports that nearly all students (95%) are White; the rest comes out to 3% Hispanic.
On the resource side, On paper, Line Mountain HS has 26 full-time-equivalent teachers, translating to a class-load average of around 12.0:1. Statewide, the average ratio sits near 12.8:1, putting Line Mountain HS tighter than the state norm the norm. About 45% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is lower than Northumberland County's rate of about 86%.
With demographic context factored in, Line Mountain HS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 58.2%, the actual is 58.8%, a residual of +0.6 points.
In the surrounding community, census data for Northumberland County shows median household earnings sit near $60,583, 19% of adults hold a bachelor's degree or higher, and the poverty rate sits near 9%. In all, Northumberland County runs 23 public schools (combined enrollment of about 10,386 students), of which Line Mountain HS is one.
Nearest neighbor: Line Mountain MS, around 0.0 miles off. 8 of the 8 nearest public schools sit inside a ten-mile radius, suggesting a relatively low-density school footprint. On composite proficiency, Line Mountain HS comes 4th of 8 in the immediate cluster, higher than the nearby-schools average of 50.5%.
Geographically, the school is in an outlying area.
Looking at the recent track record. Looking back 7 years, enrollment at Line Mountain HS has shrank 17%, going from 373 students in 2018 to 311 in 2025.
On allk12, members of the Line Mountain HS community share and discuss pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.
Northumberland County at a glance
View full county profilePopulation
90,560
Census ACS
Median income
$60,583
Household, ACS
Bachelor's+
19%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
23
10,386 students
Quick facts
Related schools
Other schools in Line Mountain SD
- Line Mountain El SchElementary · 355 students
- Line Mountain MSMiddle · 319 students
Nearby schools
- Line Mountain MS0.0 mi · 319
- Upper Dauphin Area El Sch7.9 mi · 373
- Upper Dauphin Area MS7.9 mi · 302
- Upper Dauphin Area HS8.1 mi · 331
- Selinsgrove Intrmd Sch9.7 mi · 535
- Selinsgrove Area HS9.8 mi · 744
Frequently asked questions
About Line Mountain HSWhat is the total enrollment at Line Mountain HS?
Line Mountain HS enrolls approximately 311 students in grades 09-12.
What age range does Line Mountain HS serve?
Line Mountain HS serves students from grade 09 through grade 12.
How many students per teacher at Line Mountain HS?
Approximately 12.0:1 students per teacher at Line Mountain HS.
What is the racial breakdown of students at Line Mountain HS?
At Line Mountain HS, the student body is approximately 95% White, 3% Hispanic, 1% Black, 0% Asian, 1% Two or more.
Who oversees Line Mountain HS?
Line Mountain HS is overseen by Line Mountain SD in Northumberland County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.